Cotton gin rib



ZSheets-Sheet l AYYONEY A,67P5UN/NVENTUR J.A.STREUN COTTON GIN RIB March 15, 1932.

Filed April 14. 1930K- vMaJ-'ch l5, 1932. J, A, STREUN 1,849,773

COTTON GIN RIB Filed April 14, 1950 2 Sheets-Sheet 2 Hill JA STREI/N INVENTOR ATTORNEY Patented Mar. 15, 1,932n

PATENT' oFFlcE JOHN ARNOLD STREUN, OF SHERMAN, `'IIEXASQASSIG-LTOIIEL T0 HARDWICKELETTER COM- PANY, A CORPORATION i COTTON GIN RIB Applicationv mea April 14,

My invention relates to cotton gins and has particular application to the ribs cooperating with the gin saw to removerthe seed from the lint. Y

In prior structures of this kind it is found that the ribs, between which the gin saws work, are liable to injury or breakage and occasionally have to be removed and replaced. This is a difcult and laborious job with the ordina-ry type of construction in that the ribs are secured in place by bolts and screws and as they are difficult of access the replacing of a broken or worn ribis difficult. Attempts have been made to make removable gin ribswhich may be replaced with i less difficulty than in the older structures but in these improved type of ribs it has been found diiiicult to maintain them in proper alignment and to hold them rigidly in position with the result that none of the improved type of ribs have been entirely successful.

It is an object of my invention to provide a gin rib of such construction that it may be easily mounted or demounted without difficulty making it easy to replace when desired. V

It is also an object to provide means for holding the ribs accurately in position so that they may not become out of alignment.

It isa further object of the invention to provide an eliicient type of rib which in cross section is adapted particularly to effectively remove the seed from the lint and to allow the lint to release from the saw blade.

In the drawings herewith Fig. 1 illustrates a. broken sectional view through the forward part of a cotton gin showing ribs thereon embodying my invention.

Fig. 2 is a broken front elevation of aportion of a cotton gin illustrating the improved ribs as seen fromthe forward side thereof.

Fig. 3 is a vtransverse section on the plane 3 3 of Fig. 1.

Fig. 4 is a similar section on the plane 4-4 of Fig. 1, and i Fig. 5 is a similar transverse section on the plane 5-5 of Fig. 1.

In the drawings I have shown a portion of the cotton gin in which my improved rib is employed. The general construction 1930. Serial No. 444,028.

thereof is notA a part ofthis invention and need not be particularly described. The-view shown in Fig. 1 illustrates a forward chamber'l into which the cotton is fed to be ginned. The lower partof the chamber 1 is provided with an adjustable kchute 2 leading to the picker roll 3 which is'rotatable toA carry the cotton into contact with the gin saws 4. Y

The gin saw is mounted upon a shaft 5 transversely ofthe gin and above the saw is a roll chamber 6 to accommodate the cottonv roll formed in the grinningw operation.

The roll chamber 6 is divided from the forward chamber 1V by a partition 7 of usual con,- struction. The lower part of this partition serves. as a mounting for the guide ribs 8, which are mounted at their lower ends upon cross plates 9 below the picker roll.

The gin ribs 10, which form thel subject matter of my improvement, are/supported y at their upper ends upon a transverse rod or shaft 11 extending between the side wallsV of the gin. At their lower ends they are supported upon a similar transverse rod or .shaft 12. The ribsare of the general shape of ribs now in use. That is, they are curved between the ends `to. correspond somewhat with the curvature ofthe gin saws which operate between adjacent ribs. This. shape will be understood from the view in Fig. 1.

The upper end lof each of the gin ribs is formed with a head 13, which has a marginal flange 14 seen best in Fig. 3. Between the flanged outline of the head is a web 15, said web being slotted or forked at 16 to .engage about the shaft. 1lv. This slotted end when therib is in proper position is inclined downi-A wardly at a` slight angleso as to betterengage thejrod or shaft 11 by gravity. The

`upper side1'8 is inclined away from the adjacent transverse plate or beam 19 so as to allow the forward swinging yof the upper end of the rib on the rod 12 as a pivot.

The center portion of the rib is formed in cross section as seen in Fig. 5. VThere is a lateral flange 2O at each side of the rib below which the inner face'is curved inwardly, as seen in Fig. 5, at 21and4 it'will be seenthat when the ribs are closely spaced, as seen in Fig. 2, these ribs will provide anarrow slot between the flanges 20 to allow the passage of lint but as soon as the slot is passed there will be a side relief between the sets of the ribs, allowing the lint to expand as it is torn from the seed.

The lower end of the gin rib is also provided with a marginal flange 22 and an inner web 23, the web being slotted, as in the upper headrof the rib,v.to engage over the rod or shaft 12. As will be seen from Fig. 1 ther slot, in which the shaft 12 is received,`is nearly vertical, but is inclined slightly -forward'from the .shaft so that when the rib is in operating position, as shown in Fig. 1, there will bea tendency ofthe rib to tip at its upper end against the shaft 11 and be held in place largely by gravity.

Vhen the ribs are mounted in position on the shafts 11 and 12, as seen in Fig. 2, the said' rods will extend beyond the sides 24 of the gin housing,y and be held in position by clamping nuts 25.` When thus assembled on the shaft it will be seen that the flange 13 at the upper end of each rib, and the flange 22 at the lower end of each rib, will contact frictionally with thesides of the flanges on i the adjacent ribs. The said flanges areelongated, as shown in the drawing, so as to provide a rictional surface of some extent between adjacent ribs so that when they are clamped together on the rods there will be no play or opportunity for lateral movement Vbearing between adjacent ribs, whichy keeps them in alignment. Furthermore, the ribs may be easily removed when desired. This isbest done by releasing the clampin nuts 25 on the upper and lower rods an then swingingV the upper end of the rib forwardly on the lower rod as a pivot until the upper head of the rib is free of the transverse plate or beam 19, after which the rib may be drawn d'irectly upward out of its,V position and a new one inserted in its place. Thefu'rther 'advantages' of the device will be obvious to those skilledin the art.

What I claim as new is:

1. Inl a cotton gin,a housing, a gin saw mounted therein, ginV ribs mounted adjacent said saw, upper and lower heads on said ribs, marginal flanges on'said heads adapted to contact with the heads on adjacent ribs, said heads having slots the open sides of which are inclined downwardly to fit about sup-v porting rods, and means to clamp said ribs together.

2. In a cotton gin, a housing, gin saws,

therein, transverse rods above-and below said saws, gin ribs having downwardly inclined slots the'open'sides ofwhic'h are directed at a downward inclination to engage `over said rods,and marginal iianges at the ends of said ribs adapted to contact with adjacent ribs to hold said ribs aligned and Ameans to clamp said ribs together.

3. A-cotton gin including a housing, transverse rods mounted therein, gin ribs having upper and lower heads, said upper head being formed with a slot directed downwardly: and rearwardly to engage one of said rods, th-e lower head having an elongated slot eX- tended downwardly Ato receive one'of said transverse rods, and means to clamp said ribs on said rods. Y f

4. A cotton gin including a housing, a gin saw therein, transverse rods in said housing, gin ribs having their ends slotted to engage said rods the lower slotted end opening downwardly whereby said ribs are retained thereon by gravity, elongated later flangesY at the ends of said ribs adapted to contact Y with adjacent ribs to maintain alignment of said ribs and means to clamp said ribs in position.

In testimony whereof I hereunto' aiiiX my signature this 7th day of April, A. D. 1930.

JOHN ARNOLD STREUN.

CERTIICAT or coRzcTIN'.

Patent No. 1,849, 773. Granted March l5, 1.932, to

JOHN ARNOLD STREUN.

lt is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 91, claim 4, for "later" readrlateral; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 17th day of May, A. D. 1932.

M. J. Moore, (Seal)` Acting Commissioner of Patents. 

